Fixes #1715 on 3.0 release branch

git-svn-id: http://chianti.ucsd.edu/svn@31099 0ecc0d97-ab19-0410-9704-bfe1a75892f5
Manual updated for release.

git-svn-id: http://chianti.ucsd.edu/svn@31100 0ecc0d97-ab19-0410-9704-bfe1a75892f5